greedy

#include<stdio.h>


int main(){
    int coin[10] = {20,5,2,1};
    int count_coin[4]={0};

    int value;
    ///117
    scanf("%d", &value);

    for(int i = 0; i < 4; i++){
        count_coin[i] = value/coin[i];
        value = value-count_coin[i]*coin[i];

        if(!value)break;
    }

    printf("Coin = CoinCount\n");
    for(int i = 0; i < 4; i++){
        printf("%d = %d\n", coin[i], count_coin[i]);
    }



}